WorksheetsConduction, Heat, Specific Heat, Temperature
Total questions: 27
Worksheet time: 54mins
Name
Class
Date
1.
The symbol for specific heat is .......
a)
c
b)
Q
c)
m
d)
t
2.
What is the formula to calculate heat energy required to raise the temperature of any substance?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ½mv
d)
m=QC
3.
What is the symbol for Thermal Energy?
a)
Q
b)
t
c)
m
d)
C
4.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
5.
The specific heat of aluminum is 0.21 cal/g°C. How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°?
a)
105 J
b)
10.5 J
c)
1.05 J
6.
20 g of water. specific heat of water is 4.18 J/x°C. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?
a)
418 Joules
b)
209 J
c)
83 J
d)
4.18 J
7.
A material was cooled from 100ºC to 40ºC. What is the temperature change?
a)
60ºC
b)
40ºC
c)
-60ºC
d)
-40ºC
8.
What does temperature measure?
a)
Heat
b)
ºC
c)
Kinetic Energy
d)
Thermal Energy
9.
What is the equation to measure change in Thermal Energy?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ∆mct
d)
m=QC
10.
There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?
a)
Large cup (Trenta)
b)
Small cup (Tall)
c)
Venti
d)
All three are the same temperature so they have same thermal energy
11.
The SI units
J/g°C
J/Kg °C
Cal/g°C
measures
a)
Specific heat
b)
mass
c)
temperature
d)
heat energy
12.
If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C?
a)
-80,371.2
b)
44,938.6
c)
80,371.2
d)
112,575.9
13.
The specific heat of aluminum is 0.21 cal/g°C. How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°?
a)
105 J
b)
10.5 J
c)
1.05 J
14.
The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams?
a)
12.82 °C
b)
24.12°C
c)
351 °C
15.
What is Specific Heat?
a)
The amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The amount of friction required to increase the temperature of 1kgof a material by 1°C.
16.
Using the heat equation, what would the formula look like if we were solving for change in temperature?
a)
Q m=∆T c
b)
Q/mc= ∆T
c)
Qm/c=∆T
d)
mcQ=∆T
17.
The specific heat is the amount of energy needed to raise the temperature one degree Celsius of a substance.
a)
True
b)
False
18.
A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of .10 J/g°C, what is the mass of the iron sample?
a)
25g
b)
30g
c)
20g
d)
50g
19.
A reaction is performed in a beaker with a temperature probe recording the temperature changes of the reaction. If the temperature began at 15.0 degrees Celsius and ended at 27.5 degrees Celsius. If the reaction is our system, is the system endothermic or exothermic?
a)
Exothermic
b)
Endothermic
20.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
21.
In an endothermic reaction the system is releasing energy.
a)
True
b)
False
22.
In an exothermic process, the surroundings are are gaining energy.
a)
True
b)
False
23.
Calculate the heat needed to raise the temperature of 0.25 kg of aluminum 7°C (c=900 J/kg°C)
a)
1575 J
b)
-1575 J
c)
514 J
d)
-514 J
24.
The unit(s) for heat are?
a)
calories
b)
joules
c)
calories or joules
25.
For an endothermic reaction, the heat is on the ____ side.
a)
reactant
b)
product
c)
either side
26.
For an exothermic reaction, the heat is on the ____ side
a)
reactant
b)
product
c)
either side
27.
What type of reaction is pictured behind?
a)
endothermic
b)
exothermic
100 %
